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| Mirrors > Home > ILE Home > Th. List > nummul1c | GIF version | ||
| Description: The product of a decimal integer with a number. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| nummul1c.1 | ⊢ 𝑇 ∈ ℕ0 |
| nummul1c.2 | ⊢ 𝑃 ∈ ℕ0 |
| nummul1c.3 | ⊢ 𝐴 ∈ ℕ0 |
| nummul1c.4 | ⊢ 𝐵 ∈ ℕ0 |
| nummul1c.5 | ⊢ 𝑁 = ((𝑇 · 𝐴) + 𝐵) |
| nummul1c.6 | ⊢ 𝐷 ∈ ℕ0 |
| nummul1c.7 | ⊢ 𝐸 ∈ ℕ0 |
| nummul1c.8 | ⊢ ((𝐴 · 𝑃) + 𝐸) = 𝐶 |
| nummul1c.9 | ⊢ (𝐵 · 𝑃) = ((𝑇 · 𝐸) + 𝐷) |
| Ref | Expression |
|---|---|
| nummul1c | ⊢ (𝑁 · 𝑃) = ((𝑇 · 𝐶) + 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nummul1c.5 | . . . 4 ⊢ 𝑁 = ((𝑇 · 𝐴) + 𝐵) | |
| 2 | nummul1c.1 | . . . . 5 ⊢ 𝑇 ∈ ℕ0 | |
| 3 | nummul1c.3 | . . . . 5 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | nummul1c.4 | . . . . 5 ⊢ 𝐵 ∈ ℕ0 | |
| 5 | 2, 3, 4 | numcl 9623 | . . . 4 ⊢ ((𝑇 · 𝐴) + 𝐵) ∈ ℕ0 |
| 6 | 1, 5 | eqeltri 2304 | . . 3 ⊢ 𝑁 ∈ ℕ0 |
| 7 | nummul1c.2 | . . 3 ⊢ 𝑃 ∈ ℕ0 | |
| 8 | 6, 7 | num0u 9621 | . 2 ⊢ (𝑁 · 𝑃) = ((𝑁 · 𝑃) + 0) |
| 9 | 0nn0 9417 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 10 | 2, 9 | num0h 9622 | . . 3 ⊢ 0 = ((𝑇 · 0) + 0) |
| 11 | nummul1c.6 | . . 3 ⊢ 𝐷 ∈ ℕ0 | |
| 12 | nummul1c.7 | . . 3 ⊢ 𝐸 ∈ ℕ0 | |
| 13 | 12 | nn0cni 9414 | . . . . . 6 ⊢ 𝐸 ∈ ℂ |
| 14 | 13 | addlidi 8322 | . . . . 5 ⊢ (0 + 𝐸) = 𝐸 |
| 15 | 14 | oveq2i 6029 | . . . 4 ⊢ ((𝐴 · 𝑃) + (0 + 𝐸)) = ((𝐴 · 𝑃) + 𝐸) |
| 16 | nummul1c.8 | . . . 4 ⊢ ((𝐴 · 𝑃) + 𝐸) = 𝐶 | |
| 17 | 15, 16 | eqtri 2252 | . . 3 ⊢ ((𝐴 · 𝑃) + (0 + 𝐸)) = 𝐶 |
| 18 | 4, 7 | num0u 9621 | . . . 4 ⊢ (𝐵 · 𝑃) = ((𝐵 · 𝑃) + 0) |
| 19 | nummul1c.9 | . . . 4 ⊢ (𝐵 · 𝑃) = ((𝑇 · 𝐸) + 𝐷) | |
| 20 | 18, 19 | eqtr3i 2254 | . . 3 ⊢ ((𝐵 · 𝑃) + 0) = ((𝑇 · 𝐸) + 𝐷) |
| 21 | 2, 3, 4, 9, 9, 1, 10, 7, 11, 12, 17, 20 | nummac 9655 | . 2 ⊢ ((𝑁 · 𝑃) + 0) = ((𝑇 · 𝐶) + 𝐷) |
| 22 | 8, 21 | eqtri 2252 | 1 ⊢ (𝑁 · 𝑃) = ((𝑇 · 𝐶) + 𝐷) |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1397 ∈ wcel 2202 (class class class)co 6018 0cc0 8032 + caddc 8035 · cmul 8037 ℕ0cn0 9402 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-setind 4635 ax-cnex 8123 ax-resscn 8124 ax-1cn 8125 ax-1re 8126 ax-icn 8127 ax-addcl 8128 ax-addrcl 8129 ax-mulcl 8130 ax-addcom 8132 ax-mulcom 8133 ax-addass 8134 ax-mulass 8135 ax-distr 8136 ax-i2m1 8137 ax-1rid 8139 ax-0id 8140 ax-rnegex 8141 ax-cnre 8143 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-br 4089 df-opab 4151 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-iota 5286 df-fun 5328 df-fv 5334 df-riota 5971 df-ov 6021 df-oprab 6022 df-mpo 6023 df-sub 8352 df-inn 9144 df-n0 9403 |
| This theorem is referenced by: nummul2c 9660 decmul1 9674 decmul1c 9675 |
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